[GIT PULL] tracing tooling: Updates for 6.5

From: Steven Rostedt
Date: Tue Jul 04 2023 - 09:29:53 EST



Linus,

[ As the merge window opened up while I was in Prague, I almost forgot
about the tooling branch (even though I was also with Daniel who did
all these changes!) ]

Tracing tooling updates for 6.5:

- Add cgroup support for rtla via the -C option

- Add --house-keeping option that tells rtla where to place the housekeeping
threads.

- Have rtla/timerlat have its own tracing instance instead of using the top
level tracing instance that is the default for other tracing users to use.

- Add auto analysis to timerlat_hist

- Have rtla start the tracers after creating the instances

- Reduce rtla hwnoise down to 75% from 100% as it runs with preemption disabled
and can cause system instability at 100%.

- Add support to run timerlat_top and timerlat_hist threads in user-space
instead of just using the kernel tasks.

- Some minor clean ups and documentation changes.


Please pull the latest trace-tools-v6.5 tree, which can be found at:


git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace.git
trace-tools-v6.5

Tag SHA1: 9dedca3671c6bfa589bd14415a71e69d40d83b3d
Head SHA1: 6127383217741615f3450b684ecbee1ff570ee98


Daniel Bristot de Oliveira (11):
rtla: Add -C cgroup support
rtla: Add --house-keeping option
rtla: Change monitored_cpus from char * to cpu_set_t
rtla: Automatically move rtla to a house-keeping cpu
rtla/timerlat: Give timerlat auto analysis its own instance
rtla/timerlat_hist: Add auto-analysis support
rtla: Start the tracers after creating all instances
rtla/hwnoise: Reduce runtime to 75%
rtla/timerlat_top: Add timerlat user-space support
rtla/timerlat_hist: Add timerlat user-space support
Documentation: Add tools/rtla timerlat -u option documentation

----
Documentation/tools/rtla/common_options.rst | 8 +
Documentation/tools/rtla/common_timerlat_aa.rst | 7 -
.../tools/rtla/common_timerlat_options.rst | 7 +
Documentation/tools/rtla/rtla-timerlat-hist.rst | 7 +-
Documentation/tools/rtla/rtla-timerlat-top.rst | 7 +
tools/tracing/rtla/src/osnoise.c | 65 +++++
tools/tracing/rtla/src/osnoise.h | 5 +
tools/tracing/rtla/src/osnoise_hist.c | 90 +++++-
tools/tracing/rtla/src/osnoise_top.c | 83 +++++-
tools/tracing/rtla/src/timerlat_aa.c | 35 ++-
tools/tracing/rtla/src/timerlat_aa.h | 5 +-
tools/tracing/rtla/src/timerlat_hist.c | 262 +++++++++++++++--
tools/tracing/rtla/src/timerlat_top.c | 229 +++++++++++++--
tools/tracing/rtla/src/timerlat_u.c | 224 ++++++++++++++
tools/tracing/rtla/src/timerlat_u.h | 18 ++
tools/tracing/rtla/src/utils.c | 324 +++++++++++++++++++--
tools/tracing/rtla/src/utils.h | 7 +
17 files changed, 1277 insertions(+), 106 deletions(-)
create mode 100644 tools/tracing/rtla/src/timerlat_u.c
create mode 100644 tools/tracing/rtla/src/timerlat_u.h
---------------------------